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CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as <select_list>, IN, WHERE, ORDER BY, and HAVING. Transact-SQL syntax conventions.
Learn how to use the SQL CASE expression to return a value based on conditions. See syntax, examples and a demo database with the Northwind sample data.
7 sty 2013 · Using a SELECT statement with a searched CASE expression. Within a SELECT statement, the searched CASE expression allows for values to be replaced in the result set based on comparison values. The following example displays the list price as a text comment based on the price range for a product.
28 lut 2023 · CASE w SQL możemy wykonać na dwa sposoby. Poniżej przedstawiam schematy działania instrukcji. Pierwsza konstrukcja CASE polega na przypisaniu wyniku do wartości. CASE wartość_lub_nazwa_kolumny. WHEN wartość_1 THEN wynik_1. WHEN wartość_2 THEN wynik_2.
28 cze 2024 · Możemy używać CASE wewnątrz CASE w SQL. Poniżej znajduje się przykładowy kod MS-SQL. DECLARE @Flight_Ticket int; SET @Flight_Ticket = 250; SELECT CASE WHEN @Flight_Ticket >= 400 THEN 'Visit Nearby Tourist Location.'
20 kwi 2021 · In the T-SQL scripting language, you can use the SQL CASE statement to evaluate a condition and return one or more result expressions. This SQL Tutorial will teach you when and how you can use CASE in T-SQL statements.
The CASE expression in SQL server allows us to apply if-then-else logic in a SQL statement. A CASE consists of a number of conditions with an accompanying custom result value in a case body followed by an optional ELSE clause.
